The discovery of a possible impact structure located in the Al ŅAmarah marshes of southern Iraq, identified as Umm al Binni lake, may have historic significance related to catastrophes during the Bronze Age around 2200 BCE (Master 2001, 2002; Master and Woldai 2006). Based on analysis of satellite imagery, Master (2001, 2002) suggests that the lake is an impact crater with an age of < 5,000 years. Due to the current volatile situation in Iraq, an on-site analysis of the structure is currently impossible.

Effects of the impact analysed include thermal exposure and duration, ejecta fragment diameter and fallout thickness, seismic effects, pressure wave, wind velocity, and sound intensity, based on models by Collins et al (2005). Numerical results show that significant regional damage caused by the alleged bolide impact was moderately severe, equalling tens of thousands of Hiroshima sized bombs.